Wall panel assembly



FIG. 1 is a front elevational view of a wall panel assembly, the broken lines showing reveal inserts are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view, the left side elevational view being a mirror image;

FIG. 4 is an enlarged fragmented sectional view taken along line 4—4 of FIG. 1; and,

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a wall panel assembly, as shown and described. 